What is quorum sensing?
How does it work?
Quorum sensing is a system of stimulus and response correlated to population density.
As the density of microorganisms increases, the concentration of signal molecules the cells emit increases, and the more receptors bind to these molecules. Then, when the concentration exceeds a certain threshold, the expression of previously suppressed genes is triggered, leading to the creation of biofilms and other new characteristics (production of enzymes, changes in cell shape, formation of mating types, and more).